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Cycles and Substitutions in Terrorist Activities: A Spectral Approach

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  • Im, Eric Iksoon
  • Cauley, Jon
  • Sandler, Todd

Abstract

This paper uses spectral analysis to provide evidence that cycles have characterized the following time series: all ter rorist events, skyjackings, kidnappings, barricade and hostage taking and all events not involving hostages. The series for all events ha d a periodicity of 28 months, while skyjackings had two significant p eriodicities-4.1 months and 28 months. Only a single significant pero dicity was associated with barricade and hostage events and kidnappin gs-72 months and 48 months, respectively. Cross-spectral tests sugges t that terrorists substitute between related events (e.g., kidnapping s and skyjackings); but this substitution primarily showed up in the short run. Copyright 1987 by WWZ and Helbing & Lichtenhahn Verlag AG

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Bibliographic Info

Article provided by Wiley Blackwell in its journal Kyklos.

Volume (Year): 40 (1987)
Issue (Month): 2 ()
Pages: 238-55

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Handle: RePEc:bla:kyklos:v:40:y:1987:i:2:p:238-55

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Cited by:
  1. Martin Gassebner & Simon Luechinger, 2011. "Lock, stock, and barrel: a comprehensive assessment of the determinants of terror," Public Choice, Springer, vol. 149(3), pages 235-261, December.
  2. Bruno S. Frey & Simon Luechinger & Alois Stutzer, 2004. "Calculating Tragedy: Assessing the Costs of Terrorism," CESifo Working Paper Series 1341, CESifo Group Munich.
  3. Bruno S. Frey & Simon Luechinger, . "Terrorism: Deterrence May Backfire," IEW - Working Papers 136, Institute for Empirical Research in Economics - University of Zurich.
  4. Peter Phillips, 2011. "The Life Cycle of Terrorist Organizations," International Advances in Economic Research, Springer, vol. 17(4), pages 369-385, November.
  5. Sandler, Todd & Enders, Walter, 2004. "An economic perspective on transnational terrorism," European Journal of Political Economy, Elsevier, vol. 20(2), pages 301-316, June.
  6. Brandt, Patrick T. & Sandler, Todd, 2009. "Hostage taking: Understanding terrorism event dynamics," Journal of Policy Modeling, Elsevier, vol. 31(5), pages 758-778, September.
  7. Bruno S. Frey & Simon Luechinger, . "Measuring Terrorism," IEW - Working Papers 171, Institute for Empirical Research in Economics - University of Zurich.
  8. Das, Satya P., 2008. "Some mechanisms of terror cycles," Journal of Economic Behavior & Organization, Elsevier, vol. 67(3-4), pages 644-656, September.
  9. Muhammad Islam & Wassim Shahin, 2001. "Applying economic methodology to the war on terrorism," Forum for Social Economics, Springer, vol. 31(1), pages 7-26, September.

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